Debbie's back - back from boarding school and back with Sue and Gary, who are delighted and the trio are back to their old tricks and their old haunts. But Debbie soon realises it's not the same. She has to share her bedroom with Cheryl; her science teacher, Mr Candy, is marrying a pregnant Vicki; and she may be back on the beach, but now she has to watch both Gary and Sue surf. Sue and Woody, meanwhile, have grown even closer during their 'sexperiment'. Sue asks a shocked Woody if he wants to go round with her.